@BobZ Hi You need to compile the plugin with same compiler as Creator itself That means visual studio compiler ( mingw wont work) and also same version of Qt ca. So a Qt 4.8 plugin wont load in a much newer creator. [image: Qrnzow.png] so here i should use around Qt 5.11 and vs2015, 32 bit. This is due to the plugins being DLLs and it simply cant load Dlls produced by much older compiler and the Qt used must also be at lease same major version.